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SN74LS297N from TI,Texas Instruments

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SN74LS297N

Manufacturer: TI, TEXAS

Digital Phase-Locked-Loop Filters

Partnumber Manufacturer Quantity Availability
SN74LS297N TI, TEXAS 245 In Stock

Description and Introduction

Digital Phase-Locked-Loop Filters The **SN74LS297N** is a digital integrated circuit (IC) manufactured by **Texas Instruments (TI)**. Below are its specifications, descriptions, and features based on factual information:

### **Specifications:**  
- **Manufacturer:** Texas Instruments (TI)  
- **Series:** 74LS  
- **Type:** Digital Phase-Locked Loop (PLL)  
- **Package:** PDIP (Plastic Dual In-Line Package)  
- **Pin Count:** 16  
- **Operating Voltage:** 4.75V to 5.25V (5V typical)  
- **Operating Temperature Range:** 0°C to 70°C (Commercial grade)  
- **Logic Family:** LS (Low-Power Schottky)  
- **Propagation Delay:** Typically 15 ns (varies based on conditions)  
- **Power Consumption:** Low power consumption due to LS technology  

### **Descriptions:**  
The **SN74LS297N** is a **Digital Phase-Locked Loop (PLL)** IC designed for frequency synthesis, clock recovery, and synchronization applications. It integrates a digital phase detector, a variable modulus counter, and control logic to maintain phase alignment between input and output signals.  

### **Features:**  
- **Digital PLL Functionality:** Provides phase-locking capability for digital signals.  
- **Variable Modulus Counter:** Allows flexible frequency division.  
- **Wide Operating Voltage Range:** Compatible with standard 5V TTL logic levels.  
- **Low Power Consumption:** Uses LS (Low-Power Schottky) technology for efficient operation.  
- **16-Pin DIP Package:** Easy to use in breadboard and PCB applications.  
- **TTL-Compatible Inputs/Outputs:** Ensures compatibility with other TTL logic devices.  
- **Frequency Synthesis & Clock Recovery:** Suitable for communication and timing applications.  

This information is based solely on the manufacturer's datasheet and technical documentation.

Application Scenarios & Design Considerations

Digital Phase-Locked-Loop Filters

Alternative Part Number

  • DM74LS297N --: Same 74LS297 digital PLL function in a standard DIP package, pin-compatible with the TI device.
  • MC74LS297N --: Equivalent 74LS297 frequency-locked loop IC with matching logic family and DIP pinout.
  • SN74LS297DW --: Same TI 74LS297 die in an SOIC package, suitable when a surface-mount form factor is acceptable.

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